Smoking is the acute or chronic poisoning caused by the consumption of snuff addictive. It presents all the characteristics of all generated dependence disorder toxic substances, including withdrawal syndrome that occurs when they are dispensed, particularly nicotine characteristics. Smoking carries a number of health consequences that affect the body in general: abnormal pulse and breathing, diarrhea, vomiting, dizziness, fever, cold extremities, and in very severe cases, collapse and respiratory arrest. Among smokers are common following diseases: respiratory, such as laryngitis or bronchitis; digestive diseases, such as gastritis or stomach acid (hyperacidity); cardiovascular diseases, such as arteriosclerosis; and others such as angina or lung cancer. At present there are numerous aid smoking cessation that include some additional treatments, such as nicotine replacement therapy in patients with high physical dependence, or antidepressants programs.